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A-331

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ID = 83794
       
Country:
United States of America (USA)
Brand: Amperex; New York
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to A-331
Similar Tubes
Normally replaceable-slightly different:
  805

Base Jumbo 4-pin bayonet (1918) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 2.5 Ampere / Direct
Dimensions (WHD)
incl. pins / tip
x 162 x 47 mm / x 6.38 x 1.85 inch
Information source -- Collector info (Sammler)   
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 370, p. 844

jumbo_4_pin_transmitting_base~~12.png A-331: Fin Stewart
Fin Stewart


Just Qvigstad
 
amperex_a_331_nw.jpg

 

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